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Huawei nova 3i vs Oppo A31

Compare recorded specifications, size and practical differences.

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    Key differences

    Calculated from recorded specifications using minimum difference thresholds. These are differences, not an overall ranking. For three phones, numeric highlights compare the two extremes.

    • Weight

      nova 3i: 11 g lighter

      nova 3i:
      169 g
      A31:
      180 g

    • Screen diagonal

      nova 3i: 0.2 in smaller diagonal

      nova 3i:
      6.3 in
      A31:
      6.5 in

    • Rear camera layout

      nova 3i:
      Dual
      A31:
      Triple

    • Depth

      nova 3i: 0.7 mm thinner

      nova 3i:
      7.6 mm
      A31:
      8.3 mm

    • Height

      nova 3i: 6.3 mm shorter

      nova 3i:
      157.6 mm
      A31:
      163.9 mm

    • Release year

      nova 3i:
      2018
      A31:
      2020

    Physical size

    Relative size, not calibrated actual size. Front and side outlines share one scale and a bottom baseline. Generic outlines use recorded body dimensions, excluding camera bumps.

    1. 1. nova 3i

      Height:
      157.6 mm
      Width:
      75.2 mm
      Depth:
      7.6 mm

    2. 2. A31

      Height:
      163.9 mm +6.3 mm versus nova 3i
      Width:
      75.5 mm
      Depth:
      8.3 mm +0.7 mm versus nova 3i

    Weight

    Bars start at zero and share a scale within this chart.

    1. 1. nova 3i

      169 g

    2. 2. A31

      180 g

      +11 g versus nova 3i

    Screen size

    Approximate rectangular screens calculated from recorded diagonal and aspect ratio at one relative scale. Rounded corners and cutouts are not subtracted. These are not phone outlines or calibrated actual sizes.

    1. 1. nova 3i

      Screen diagonal:
      6.3 in
      Aspect ratio (height:width):
      19.5:9
      Approximate rectangular screen area:
      97.4 cm²

    2. 2. A31

      Screen diagonal:
      6.5 in
      Aspect ratio (height:width):
      20:9
      Approximate rectangular screen area:
      102 cm²

    A31 has approximately 4.7% more rectangular screen area than nova 3i.

    Memory variants

    Each row compares the same storage capacity. Cells show recorded RAM alternatives, not combined maxima. Not recorded does not mean unavailable in every market.

    Recorded RAM for nova 3i, A31, compared at the same storage capacity.
    Storagenova 3iA31
    128 GB Unknown 4 GB RAM
    nova 3i: Original memory entry

    128 GB · 4 GB RAM 64 GB · 4/6 GB RAM

    Practical features

    Explicit Yes and No values are shown directly. Qualified or regional records retain their details. Unknown means the record is missing.

    1. nova 3i

    NFC:
    Unknown
    Headphone jack:
    Yes
    Memory card support:
    See details microSD · up to 256 GB (uses SIM 2 slot)

    2. A31

    NFC:
    Unknown
    Headphone jack:
    Yes
    Memory card support:
    See details microSDXC (dedicated slot)

    Battery capacity

    Capacity is not battery life. No endurance test is implied.

    Recorded battery capacity

    Bars start at zero and share a scale within this chart.

    1. 1. nova 3i

      3340 mAh

    2. 2. A31

      4230 mAh

      +890 mAh versus nova 3i

    Specifications

    Open a section for more detail. On narrow screens, swipe sideways or use Left/Right arrow keys while the table is focused. Unknown means missing data, not No. Recorded zero values are shown as recorded.

    1. nova 3i2. A31

    Everyday essentials
    Everyday essentials — specifications for nova 3i, A31.
    Specificationnova 3iA31
    Dimensions (HxWxD)
    • 157.6 Х 75.2 Х 7.6 mm
    • 163.9 Х 75.5 Х 8.3 mm
    Weight
    • 169 g
    • 180 g
    Technology
    • IPS LCD
    • IPS LCD
    Screen size
    • 6.3" inch
    • 6.5" inch
    Screen resolution
    • 1080 x 2340 px
    • 720 x 1600 px
    Internal memory Recorded storage / RAM variants. Entries are alternatives, not a combined maximum. Ambiguous formats stay as recorded.
    • 128 GB
    • 4 GB RAM 64 GB
    • 4/6 GB RAM
    • 128GB 4GB RAM
    Memory card support
    • microSD
    • up to 256 GB (uses SIM 2 slot)
    • microSDXC (dedicated slot)
    Battery Capacity is not battery life. No endurance test is implied.
    • 3340 mAh
    • Non-removable Li-Ion
    • 4230 mAh
    • Non-removable Li-Po
    Operating system OS
    • Android 8.1 (Oreo); EMUI 8.2
    • Android 9.0 (Pie); ColorOS 6.1
    Chipset
    • HiSilicon Kirin 710 (12 nm)
    • Mediatek MT6765V/CB Helio P35 (12nm)
    Headphone jack
    • Yes
    • Yes
    Display
    Display — specifications for nova 3i, A31.
    Specificationnova 3iA31
    Touchscreen
    • capacitive touchscreen
    • capacitive touchscreen
    Display colors
    • 16M
    • 16M
    Screen area
    • 97.4 cm2
    • 102.0 cm2
    Screen format
    • 19.5:9 (height:width)
    • 20:9 (height:width)
    Screen to body ratio
    • 82.2%
    • 82.4%
    PPI /points per inch/
    • 409 PPI
    • 270 PPI
    Camera and Video
    Camera and Video — specifications for nova 3i, A31.
    Specificationnova 3iA31
    Rear camera, main
    • 16 MP
    • Dual
    • 12 MP
    • Triple
    Camera specs
    • 16 MP
    • f/2.2
    • PDAF -2 MP
    • depth sensor
    • 12 MP
    • f/1.8
    • (wide)
    • PDAF -2 MP
    • f/2.4
    • 27mm (macro)
    • 1/5.0''
    • 1.75µm -2 MP
    • (depth)
    Functions
    • HDR
    • HDR
    Video
    • 1080p@30fps
    • 1080p@30fps
    Front camera, selfie
    • 24 MP
    • Dual
    • 8 MP
    • Single
    Specifications
    • 24 MP
    • f/2.0 2 MP
    • depth sensor
    • 8 MP
    • f/2.0
    Performance

    Scores marked * are historical catalogue entries. Test conditions are unspecified; no new testing is implied.

    Performance — specifications for nova 3i, A31.
    Specificationnova 3iA31
    Processor CPU
    • Octa-core (4x2.2 GHz Cortex-A73 & 4x1.7 GHz Cortex-A53)
    • Octa-core (4x2.3 GHz Cortex-A53 & 4x1.8 GHz Cortex-A53)
    Graphics processor GPU
    • Mali-G51 MP4
    • PowerVR GE8320
    Antutu 7 score *
    • 138600
    		 Unknown
    Antutu 8 score *
    • 162586
    • 105221
    GeekBench 5 Single Core *
    • 329
    		 Unknown
    GeekBench 5 Multi-Core *
    • 1297
    		 Unknown
    General specs
    General specs — specifications for nova 3i, A31.
    Specificationnova 3iA31
    Release date
    • 2018
    • July
    • 2020
    • February 13
    Colors
    • Black
    • Pearl White
    • Iris Purple
    • Acacia red
    • Fantasy White
    • Mystery Black
    Historical recorded price Legacy catalogue value; date unknown. Not a current offer.
    • 350 EUR
    • 180 EUR
    Body build Unknown
    • Glass front
    • plastic back
    • plastic frame
    Communication and Connectivity
    Communication and Connectivity — specifications for nova 3i, A31.
    Specificationnova 3iA31
    SIM card
    • Hybrid Dual SIM (Nano-SIM
    • dual stand-by)
    • Dual SIM (Nano-SIM
    • dual stand-by)
    Network
    • Show all network frequencies: -2G - GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 CDMA 800 & TD-SCDMA - China -3G - HSDPA 850 / 900 / 2100 -4G - LTE band 1(2100)
    • 3(1800)
    • 5(850)
    • 7(2600)
    • 8(900)
    • 2(1900)
    • 38(2600)
    • 40(2300)
    • 41(2500) - China
    • Show all network frequencies: -2G - GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 -3G - HSDPA 850 / 900 / 2100 -4G - LTE (unspecified)
    Speed
    • HSPA 42.2/5.76 Mbps
    • LTE-A (3CA) Cat12 600/150 Mbps
    • HSPA 42.2/5.76 Mbps
    • LTE-A
    GPRS
    • Yes
    • Yes
    Edge
    • Yes
    • Yes
    Wi-Fi
    • Wi-Fi 802.11 b/g/n
    • Wi-Fi Direct
    • hotspot
    • Wi-Fi 802.11 a/b/g/n/ac
    • dual-band
    • Wi-Fi Direct
    • hotspot
    GPS
    • Yes
    • with A-GPS
    • GLONASS
    • BDS
    • Yes
    • with A-GPS
    • BDS
    USB
    • microUSB 2.0
    • USB On-The-Go
    • microUSB 2.0
    • USB On-The-Go
    Bluetooth
    • 4.2
    • A2DP
    • LE
    • EDR
    • aptX HD
    • 5.0
    • A2DP
    • LE
    Music and Audio
    Music and Audio — specifications for nova 3i, A31.
    Specificationnova 3iA31
    Radio
    • FM radio
    • FM radio
    Others
    • Active noise cancellation with dedicated mic
    • 480 nits typ. brightness
    Other features
    Other features — specifications for nova 3i, A31.
    Specificationnova 3iA31
    Dop
    • Sensors Fingerprint (rear-mounted)
    • accelerometer
    • gyro
    • proximity
    • compass - Charging 5V/2A 10W
    • Sensors Fingerprint (rear-mounted)
    • accelerometer
    • proximity
    • compass

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